20998625

素因数分解:

$5^3\times {\mathrm{31}}^1\times {\mathrm{5419}}^1$

素因数の和:5465

約数の個数: 16

約数和(自身を含む): 27056640

約数和(自身を除く): 6058015

約数列:

[1, 5, 25, 31, 125, 155, 775, 3875, 5419, 27095, 135475, 167989, 677375, 839945, 4199725, 20998625]

約数ペア:

[(1, 20998625), (5, 4199725), (25, 839945), (31, 677375), (125, 167989), (155, 135475), (775, 27095), (3875, 5419)]